If you are able to make this happen, it would be very interesting if you could get the visitors to write a short note before entering about what they expect, ho

If you are able to make this happen, it would be very interesting if you could get the visitors to write a short note before entering about what they expect, how well they think they'll handle the disorientation, etc. After they're done have them write a similar note about their experience and how reality matched up with their expectations. For all of us that don't have access to such facilities, this kind of before/after diary might be very interesting.